Intel UHD Graphics 630 on RHEL 7.5
Hello,
I have set-up a RHEL 7.5 machine using Intel UHD Graphics 630. Unfortunately, the display resolution is limited to 1024*768. The Xorg logs shows that it uses the fallback VESA driver. I have tried finding drivers elsewhere without success. xorg-x11-drv-intel is installed and latest version.
Please can I have some assistance with this issue.
Responses
Guru
22756 points
Hi Daniel,
I couldn't immediately find anything to match this, it seems from what I could find, the one you picked ought to have maybe worked. I went to the Intel website, and their website led to this link https://www.intel.com/content/www/us/en/support/articles/000005520/graphics-drivers.html which didn't really seem to help.
Maybe someone knows of something else perhaps at el-repo or something. I have to deal with some things tonight. Perhaps another person will chime in.
Regards,
RJ
Guru
34320 points
Hi Daniel,
Add the option i915.alpha_support=1 to the boot parameters : sudo nano /etc/default/grub, that it looks like
GRUB_CMDLINE_LINUX="rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rhgb quiet i915.alpha_support=1".
Save the change (press Ctrl + X and then Y), update the GRUB configuration and reboot the system afterwards.
On machines with EFI based BIOS -> sudo grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg
On machines with Legacy (msdos) BIOS -> sudo grub2-mkconfig -o /boot/grub2/grub.cfg
Hope this solves the problem, good luck ! :)
Regards,
Christian
Guru
34320 points
Hi Daniel,
As you didn't provide more details about your hardware, in case you have a notebook with hybrid (intel / NVIDIA) graphics :
Eventually there is an incompatibility with the open source nouveau drivers which eventually causes interference issues.
You can try whether adding the parameter nouveau.modeset=0 to /etc/default/grub can alternatively solve it. :)
Regards,
Christian
Guru
34320 points
Hi Daniel,
It's me again ... Having been concentrated on providing the solution, I completely forgot to add an explanation, so I owe you that. :)
Currently the graphics (UHD 630) from the intel Coffee Lake CPU series are marked as "alpha support" and hence are not enabled by default on newer Linux distributions unless booting with the i915.alpha_support=1 kernel parameter. This changed starting with the release of kernel 4.15 and until this change is not backported to kernel 3.10 (being shipped with RHEL 7), you'll have to add the parameter. More information about the topic -> Linux 4.15 Will Finally Graduate Intel "Coffee Lake" Graphics Out Of Alpha Support
Regards,
Christian